Early selection for spike fertility index increases yield of advanced generations in bread wheat
Spike fertility index (a.k.a. fruiting efficiency) at maturity (FEm -grain number per spike/g spike chaff at maturity-) and spike harvest index (SHI -grain weight per spike/g spike chaff weight at maturity-) are considered promising selection criteria for improving grain yield (GY) in bread wheat. H...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Wiley
2023
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/14147 https://acsess.onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20846 https://doi.org/10.1002/csc2.20846 |
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| author | Alonso, María Pía Franco, María Fiorella Pontaroli, Ana Clara |
| author_browse | Alonso, María Pía Franco, María Fiorella Pontaroli, Ana Clara |
| author_facet | Alonso, María Pía Franco, María Fiorella Pontaroli, Ana Clara |
| author_sort | Alonso, María Pía |
| collection | INTA Digital |
| description | Spike fertility index (a.k.a. fruiting efficiency) at maturity (FEm -grain number per spike/g spike chaff at maturity-) and spike harvest index (SHI -grain weight per spike/g spike chaff weight at maturity-) are considered promising selection criteria for improving grain yield (GY) in bread wheat. However, their usefulness in early generations remains to be established. Here, a population derived from a cross between ‘Baguette 10′ and ‘Klein Chajá’ was evaluated from early generations (F2-F3) to recombinant inbred lines (RIL). Associations of FEm and SHI measurements between early generations and RIL were established. Also, responses in grain number/m2 (GN) and GY in the RIL after simulated selection for high FEm or high SHI in the F2-F3 were assessed. Positive correlations were found in FEm measured in the F2-F3 vs. in the RIL (r = 0.32, P < 0.05) and SHI measured in the F3 vs. in the RIL (r = 0.26, P < 0.05). After selection for high FEm in the F2-F3, responses in GN were always positive: GN increased by 5.1 to 22.1% depending on the selection strategy. Responses in GY were positive in three out of four selection strategies, averaging -1.3 to 2.1%. Responses to selection in GN and GY in the RIL using SHI as a selection criterion in the F2-F3 were negative or neutral. Our results support the use of FEm as a selection criterion in early generations for increasing GN and GY in advanced generations of bread wheat breeding programs. |
| format | Artículo |
| id | INTA14147 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA141472025-02-13T14:44:20Z Early selection for spike fertility index increases yield of advanced generations in bread wheat Alonso, María Pía Franco, María Fiorella Pontaroli, Ana Clara Espigas Trigo Harinero Fructificación Mejora Genética Criterios de Selección Spikes Soft Wheat Fruiting Genetic Gain Selection Criteria Spike fertility index (a.k.a. fruiting efficiency) at maturity (FEm -grain number per spike/g spike chaff at maturity-) and spike harvest index (SHI -grain weight per spike/g spike chaff weight at maturity-) are considered promising selection criteria for improving grain yield (GY) in bread wheat. However, their usefulness in early generations remains to be established. Here, a population derived from a cross between ‘Baguette 10′ and ‘Klein Chajá’ was evaluated from early generations (F2-F3) to recombinant inbred lines (RIL). Associations of FEm and SHI measurements between early generations and RIL were established. Also, responses in grain number/m2 (GN) and GY in the RIL after simulated selection for high FEm or high SHI in the F2-F3 were assessed. Positive correlations were found in FEm measured in the F2-F3 vs. in the RIL (r = 0.32, P < 0.05) and SHI measured in the F3 vs. in the RIL (r = 0.26, P < 0.05). After selection for high FEm in the F2-F3, responses in GN were always positive: GN increased by 5.1 to 22.1% depending on the selection strategy. Responses in GY were positive in three out of four selection strategies, averaging -1.3 to 2.1%. Responses to selection in GN and GY in the RIL using SHI as a selection criterion in the F2-F3 were negative or neutral. Our results support the use of FEm as a selection criterion in early generations for increasing GN and GY in advanced generations of bread wheat breeding programs. EEA Balcarce Fil: Alonso, María Pía. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Alonso, María Pía. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Alonso, María Pía. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Franco, María Fiorella. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Franco, María Fiorella. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Franco, María Fiorella. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Pontaroli, Ana Clara. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Pontaroli, Ana Clara. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Fil: Pontaroli, Ana Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2023-03-06T16:29:03Z 2023-03-06T16:29:03Z 2023-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14147 https://acsess.onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20846 0011-183X (print) 1435-0653 (online) https://doi.org/10.1002/csc2.20846 eng info:eu-repograntAgreement/INTA/PNCYO-1127044/AR./-Desarrollo de germoplasma y cultivares comerciales de cereales de invierno info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Crop Science 63 (3) : 1070-1081. (May/June 2023) |
| spellingShingle | Espigas Trigo Harinero Fructificación Mejora Genética Criterios de Selección Spikes Soft Wheat Fruiting Genetic Gain Selection Criteria Alonso, María Pía Franco, María Fiorella Pontaroli, Ana Clara Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title | Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title_full | Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title_fullStr | Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title_full_unstemmed | Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title_short | Early selection for spike fertility index increases yield of advanced generations in bread wheat |
| title_sort | early selection for spike fertility index increases yield of advanced generations in bread wheat |
| topic | Espigas Trigo Harinero Fructificación Mejora Genética Criterios de Selección Spikes Soft Wheat Fruiting Genetic Gain Selection Criteria |
| url | http://hdl.handle.net/20.500.12123/14147 https://acsess.onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20846 https://doi.org/10.1002/csc2.20846 |
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